• Title/Summary/Keyword: 어로활동

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A Study on the Implementation of System for Wireless Data Communication Using SSB (SSB 해상무선데이터 통신시스템 구현에 관한 연구)

  • 김정년;노창균;조학현
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2003.05a
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    • pp.75-80
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    • 2003
  • The Ministry of Maritime Affairs & Fisheries have plaining the advancing fishery information integrated system for the fishing present condition, marine resource administration and applicability considering. The fishery information communication system is build up to the raw date & process-network-content. The communication system must be small size, low cost and adapted SSB transceiver, that is using fishery shipping. In this paper We present digital data communication network to exchange information for fishery and safety between fishing ship and coast station in cheeper communication free using SSB(Single Side Band) in HF(High Frequency) band.

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Moored Current Observation: Shallow-Water Mooring (해류계 계류에 의한 해류관측: 천해계류)

  • 황상철;장경일;석문식;장영석
    • The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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    • v.7 no.4
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    • pp.286-303
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    • 2002
  • Korea Ocean Research and Development Institute (KORDI) has attempted moored current measurements since 1978. This note describes mooring types and failures of moorings deployed in coastal and continental shelf regions around Korea. Taut-wire U-type mooring lines and trawl-resistant bottom mounts have been mainly used in shallow seas. In order to avoid the failure of moorings in the shallow seas, it is needed to (1) design a proper mooring plan considering local mooring environments including fishing activities and (2) use adequate mooring equipments and parts considering mooring period, depth, and other factors that could affect the mooring unexpectedly.

Seismic Structures of the Continental Margin around Smith Island, antarctic Peninsula (남극반도 스미스섬 부근 대륙주변부의 탄성파 구조)

  • Jin, Yong-Keun;Nam, Sang-Heon;Lee, Joo-Han;Hong, Jong-Kuk;Lee, Duk-Kee;Lee, Jong-Ik
    • Journal of the Korean Geophysical Society
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    • v.9 no.4
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    • pp.443-453
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    • 2006
  • Using seismic profiles obtained in the Antarctic Peninsula continental margin around Smith Island located at the southwestern end of the South Shetland Islands, we investigated sediments distribution, sedimentation, continental shelf formation, and tectonic evolution history. The study area is a very unique area that has two tectonic provinces with a tectonic boundary near Smith Island just the landward projection of the Hero Fracture Zone (HFZ). To the southwest of the Island, the margin became inactive margin after the collision of the ridge crest of the Antarctic-Phoenix ridge and trench, whereas to the northeast the margin is still apparently active margin with the spreading center and trench morphology in the sea. Generally the northeastern margin has the shelf sedimentary basins wth thick sedimentary layers, well-developed forearc basin, broad continental slope and distinct trench morphology, and the southwestern margin is characterized by steep and narrow continental slope and localized shelf basins. the mid-shelf basement high structures are distinct in the southwestern margin, which are thought to be formed by thermal effect caused by the subducted spreading centers. The high is observed in the area just northeast of the Island, implying that the tectonic boundary along the landward projection of the HFZ is not sharply defined.

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A Study on the Remote Control System for Outboard Engine (선외기 원격제어시스템에 관한 연구)

  • Jung, Gab-Dong;Kim, Hyun-Soo;Ahn, Byong-Won
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.13 no.3
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    • pp.229-234
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    • 2007
  • Currently offshore fisheries are one of shrinking industries and fishermen are getting older. Moreover it is difficult to work fisheries for decreasing fishermen as the time goes. Two people per a boat work together at least for proper fisheries. If the unskilled fisherman boards on boat, it will make some troubles to speak each other and diminish the efficiency of working because one person should control the boat. So it need to study the remote control system for leasure and outboard engine that can control and work at the same time. The remote control system is consisted of engine, steering gear and forward reverse neutral gear controls. These three controls are made by position and speed control using DC motor, and microcontroller is used to control the engine speed and rudder angle. This system can be controled and worked alone and we tested the system at sea and confirmed that the system works properly.

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A Study on the Digital Fishery Network for Advancing of Fishery for Wireless Data Communication Using SSB (어업의 선진화를 위한 디지털 어업통신망에 대한 연구)

  • Kim, Jeong-Nyun;Noh, Chang-Gyun;Jo, Hag-Hyun
    • Journal of Navigation and Port Research
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    • v.27 no.4
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    • pp.431-436
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    • 2003
  • It's about time we had to think an alternative to recover out insufficient fishery market caused by IMF locally as well as the fishery agreement on Japan and China. The Ministry of Maritime Affairs & Fisheries have planning the advancing fishery information integrated system for the fishing present condition, marine resource administration and applicability consideration. The fishery information communication system is build up to the raw data & process-network-content. The communication system must be small size, low cost and adapted SSB transceiver, that is using fishery shipping. In this paper We present digital data communication network to exchange information for fishery and safety between fishing ship and coast station in cheeper communication fee using SSB(single Side Band) in HF(High Frequency) band.

Implementation of Automatic Identification Monitoring System for Fishing Gears based on Wireless Communication Network and Establishment of Test Environment (무선통신망 기반 어구자동식별 모니터링 시스템 구현 및 시험환경 구축)

  • Joung, JooMyeong;Park, HyeJung;Kim, MinSeok;Kwak, Myoung-Shin;Seon, Hwi-Joon
    • Journal of IKEEE
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    • v.25 no.1
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    • pp.193-200
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    • 2021
  • In order to prevent illegal fishing and reduce lost fishing gear, it is necessary to develop a constant and continuous fishing gear monitoring system in the marine environment. In this paper, we design a long-term operational, reliable system model with communication coverage of more than 25Km considering the reality of gradually expanding fishing activity due to the depletion of fishery resources and marine environments. The design results are implemented to verify the operability of the system by separating the communication success rate of SKT and private LoRa networks and verifying the control function of each control system through the collected location information, respectively.

A study for construction of Shore-end Submarine cable (천해부에서 해저케이블 건설 연구)

  • Jung, Jae-Jin;Lee, Young-Sun;Shin, Hyun-Shik
    • The Journal of the Korea institute of electronic communication sciences
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    • v.2 no.3
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    • pp.185-190
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    • 2007
  • The biggest cause of submarine cable fault is fishing activity such as 70% by anchor of fishing boats and occurs within 200m the depth of water. It needs a regulation for protection of submarine cable from the fishing boats and construction of cable at shore-end. This paper is studying a plan and regulation to install the construction among the subsee users, and the burial technique of submarine cable at shore-end suggests to manage from company to government.

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Test of Fishing Activity Levels using Schaefer Model (쉐퍼모형 응용을 통한 어로활동수준 검정)

  • Lee, Kwang-Nam
    • Ocean and Polar Research
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    • v.31 no.2
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    • pp.157-165
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    • 2009
  • The study examined overuse of the fishery resource. Influence of fishing activity was estimated by application of Schaefer model's. Fishing efforts that produced the maximum sustainable yield were determined in the model, allowing the effect of overfishing to be assessed. In the model, a wide variety of fish species as well as crustaceans and shellfish were susceptible to overfishing, while mollusks were not. Overfishing by modern techniques exacted a greater toll than more traditional methods. The results of the modeling study suggest that the 'Buy bag' input-control system of fisheries resource management warrants consideration, as does modernization, expansion and strengthening of self-control management of the fishery resource. Finally, more effective efforts in dissemination of policy information and education concerning the fishery resource are needed.

Scheme for Communication Service in Coastal Area Using Mobile IP Router with Multiple Interfaces (중인터페이스를 가진 이동 IP 라우터를 이용한 해안 지역 통신 서비스 방안)

  • Park, Chun-Kwan
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.11 no.6
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    • pp.177-182
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    • 2011
  • These days as there are growing the number of vessel sailing, diverse aquaculture industries, fishing works, and leisure activities in coastal area, the diverse communication services have been required for secure voyage information. This paper addresses the scheme for costal area service using mobile IP router with multiple interfaces. For this, this system has the wireless interfaces, such as WiBro, HSDPA, and WLAN that can provides vessels with divers communication services, and can provide the vessels with the diverse information communication services in real-time through wireless communication network installed in costal area. So this can provide the infrastructure that supplies the authorized seamless information communication services.

Redefinition of the Concept of Fishing Vessel and Legislation Adjustment (낚시어선 개념의 재정립과 법제 정비에 관한 연구)

  • Yeong-Tae Son
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.29 no.6
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    • pp.639-652
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    • 2023
  • The fundamental background behind the introduction of the fishing vessel system is to allow petty small fishers to engage in pure fishery business activities with fishing vessels during normal times and engage in fishing vessel business only during specific periods (closed fishing season, etc.) thereby granting a qualification as an auxiliary tool for the economic activities of petty small fishers. In addition, fishing boats are allowed to engage in excursion ship activities using fishing vessels registered under the Fishing Vessels Act, the form of fishing vessels should also have a general and universal structure that is practically easy to engage in fishing activities in the field in accordance with the relevant regulations. However, most fishing vessel proprietors are currently focusing only on increasing income, and rather than building fishing vessels in a reasonable form suitable for the original purpose of general fishing vessels, they prefer an abnormal hull form equivalent to expediency, that is biased hull structure biased toward the fishing vessel business. As a result, it is causing serious problems in safety management as well as conflict [damaging relative equity in government support measures (tax-free oil supply, etc.), and depletion of livelihood-type fish stocks] with fishing vessel forces who consider the fishing vessel business only to be a part of the side job among all fishery business activities. Meanwhile, the most fundamental cause of this problem is that the current Fishing Management and Promotion Act, limits the concept of fishing vessels to fishing vessels registered under the Fishing Vessels Act, and applies survey standards accordingly. Accordingly, in this study, through analysis of the distribution status of fishing vessels, structural characteristics, operation status of fishing vessels, and the government's fishing promotion policies, etc., the relevant laws (regulations) have been reorganized to suit the current reality of the concept of fishing vessels to separate the current fishing vessel from fishing vessels and operate it as a fishing-only vessel.